Quiz for Inheritance

Q1: What is inheritance in Java?

A. The process of creating new methods B. The ability of a class to acquire properties of another class C. The process of creating private members D. The process of overloading a method

Q2: Which keyword is used for inheritance in Java?

A. inherit B. super C. extends D. implements

Q3: Which class is the parent class of all classes in Java?

A. Base B. Parent C. Superclass D. Object

Q4: What type of inheritance does Java not support directly?

A. Single B. Multiple (with classes) C. Multilevel D. Hierarchical

Q5: Which method is used to access superclass constructor?

A. super() B. this() C. base() D. parent()

Q6: Can a subclass override a private method of its superclass?

A. Yes B. No C. Only in the same package D. Only if final

Q7: Which access modifier allows subclass access in different packages?

A. private B. default C. protected D. public

Q8: Which keyword is used to refer to the parent class?

A. base B. super C. this D. upper

Q9: Which type of inheritance is supported in Java using interfaces?

A. Single B. Multilevel C. Multiple D. Hierarchical

Q10: What is method overriding?

A. Using multiple methods with same name but different return type B. Replacing superclass method in subclass C. Using same method name in different classes without relation D. Calling a method recursively

Q11: Which annotation is used to indicate a method is overriding?

A. @Override B. @Overload C. @Inherited D. @Extend

Q12: What is the benefit of inheritance?

A. Faster execution B. Memory management C. Code reuse D. Increased security

Q13: What is multilevel inheritance?

A. A class inherits from multiple classes B. A class inherits from another class, which inherits from another C. A class implements multiple interfaces D. Using nested classes

Q14: Can a subclass access private fields of a superclass?

A. Yes B. No C. Only if final D. Only with this keyword

Q15: Can a final method be overridden?

A. Yes B. No C. Only in interfaces D. Only if public

Q16: Which of these is not inherited by a subclass?

A. public fields B. protected fields C. private fields D. public methods

Q17: What is hierarchical inheritance?

A. One class inherits multiple classes B. Multiple classes inherit one class C. One class inherits itself D. Classes with no relation

Q18: What does 'super.methodName()' do?

A. Calls static method B. Calls method from subclass C. Calls method from superclass D. None of the above

Q19: Is constructor inherited in Java?

A. Yes B. No C. Only protected constructors D. Only default constructors

Q20: Which type of inheritance leads to ambiguity?

A. Multiple B. Single C. Multilevel D. Hierarchical